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英国唯一一只雌性北极熊维多利亚产下幼崽。从饲养员的不懈努力到幼崽第一次从熊窝中现身，影片详实记录了维多利亚两年多的产子之路。影片以独特的视角深入探究北极熊的生理机能，并探讨了圈养繁殖在这个神奇物种的繁

https://www.bbc.co.uk/iplayer/episode/b0bcmjht/horizon-2018-4-spina-bifida-me　　One in every 1,000 pr

Suicide is the biggest killer of men under 50 in the UK - causing more deaths in this group than car

Artificial Intelligence is starting to transform healthcare beyond recognition. The vision for tech

https://www.bbc.co.uk/iplayer/episode/b0bb33ht/horizon-2018-3-how-to-build-a-time-machine　　Time trav

Botero is a poetic documentary profile of Colombian artist Fernando Botero. The film is a behind-the

横漂演员杨胜军在百忙之中带着爱人和孩子们开着自家的二手车在一个风景如画的山沟里搞野炊。山沟里有泉水，有池塘，有巨石，丛林一片片。他们一家人挖野菜，拾野蛋，掏鸟窝，捉鱼虾，做的都是山珍美味，泡着澡，做着

为庆祝改革开放40周年，展示改革开放的历程，由中央宣传部、中央改革办、中央党史和文献研究院、国家发展改革委、国家广播电视总局、新华社、中央广播电视总台、中央军委政治工作部联合拍摄的8集政论专题片《必由

In 1989, physicist Bob Lazar broke the story of Area 51 and the US government's work on alien sp